Submission #1109760

#	Time	Username	Problem	Language	Result	Execution time	Memory
1109760		n3rm1n	Art Collections (BOI22_art)	C++17	50 / 100	716 ms	1648 KiB

art

#include <bits/stdc++.h>
#include "art.h"
using namespace std;

int n;
vector < int > init;
int inits;
int try_it(int f, int s)
{
    int turn = 1, change = 2;
    if(f > s)
    {
        swap(turn, change);
    }
    vector < int > sf = init;
    swap(sf[f-1], sf[s-1]);

    int feedback1 = publish(sf);

    if(inits > feedback1)
    {
        turn = change;
    }
    return turn;
}
vector < int > combine(vector < int > f, vector < int > s)
{
    vector < int > res;
    int i = 0;
    int j = 0;
    while(i < f.size() && j < s.size())
    {
        int el1 = f[i];
        int el2 = s[j];
        int order = try_it(el1, el2);
        if(order == 1)
        {
            res.push_back(el1);
            i ++;
        }
        else
        {
            res.push_back(el2);
            j ++;
        }
    }
    while(i < f.size())
    {
        res.push_back(f[i]);
        i ++;
    }
    while(j < s.size())
    {
        res.push_back(s[j]);
        j ++;
    }
    return res;
}
vector < int > merge_sort(int l, int r)
{
    if(l == r)
    {
        vector < int > v;
        v.push_back(l);
        return v;
    }
    int mid = (l + r)/2;
    vector < int > fh, sh;
    fh = merge_sort(l, mid);
    sh = merge_sort(mid+1, r);
    return combine(fh, sh);
}
void solve(int N)
{
    n = N;
    for (int i = 1; i <= n; ++ i)
        init.push_back(i);
    inits = publish(init);
    vector < int > v = merge_sort(1, n);
    answer(v);
    return;

}

Compilation message (stderr)

art.cpp: In function 'std::vector<int> combine(std::vector<int>, std::vector<int>)':
art.cpp:31:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |     while(i < f.size() && j < s.size())
      |           ~~^~~~~~~~~~
art.cpp:31:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |     while(i < f.size() && j < s.size())
      |                           ~~^~~~~~~~~~
art.cpp:47:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   47 |     while(i < f.size())
      |           ~~^~~~~~~~~~
art.cpp:52:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   52 |     while(j < s.size())
      |           ~~^~~~~~~~~~
interface.cpp: In function 'int publish(std::vector<int>)':
interface.cpp:20:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   20 |     if(v.size() != N) {
      |        ~~~~~~~~~^~~~
interface.cpp: In function 'void answer(std::vector<int>)':
interface.cpp:36:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   36 |     if(v.size() != N) {
      |        ~~~~~~~~~^~~~

• Subtask 1: 5 / 5
• Subtask 2: 15 / 15
• Subtask 3: 15 / 15
• Subtask 4: 15 / 15
• Subtask 5: 0 / 20
• Subtask 6: 0 / 30